Someone sent Brian Krebs an envelope of counterfeit $100 and $50 bills, apparently manufactured by Mrmouse, the counterfeiter whom Krebs outed for selling his notes openly on Reddit.
It's the latest in a series of weird things that Internet criminals have sent to Krebs's home, including a SWAT team, heroin, shit, and a funeral arrangement. Krebs examined the notes in detail, finding them to be of extremely high quality, though detectable as fakes if you know what to look for (especially if you have an ultraviolet lamp and a microscope handy).
Sure enough, the package contained the minimum order that MrMouse allows: $500, split up into four fake $100s and two phony $50 bills — all with different serial numbers. I have no idea who sent the bogus bills; perhaps it was MrMouse himself, hoping I’d write a review of his offering...
In the video below, I run the fake bills through two basic tests designed to determine the authenticity of U.S. currency: The counterfeit pen test, and ultraviolet light. As we’ll see in the video, the $50 bills shipped in this package sort of failed the pen test (the fake $100 more or less passed). However, both the $50s and $100s completely flopped on the ultraviolet test. It’s too bad more businesses don’t check bills with a cheapo ultraviolet light: the pen test apparently can be defeated easily (by using acid-free paper or by bleaching real bills and using them as a starting point).
Fun With Funny Money
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Another amazing Shmoocon talk is “Users Are People Too: How to Make Your Tools Not Suck for Humans,” presented by two key people from Simply Secure, a nonprofit devoted to improving security tool usability (I am a volunteer advisor to Simply Secure).
In January 2015, security researcher and beloved, prolific geek Michael “Hackerjoe” Hamelin died in a head-on collision that also hospitalized his widow, Beth Hamelin.
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